This semiconductor gas sensor detects the presence of combustible gas and smoke at concentrations which range from 300 to 10,000 ppm. This is a wide range, high responsive, and very sensitive sensor which can be used in homes and factories. The MQ-2 sensor is highly sensitive to LPG, propane, and hydrogen, but it is also capable of detecting methane, alcohol, and other gases.

Specifications

• Detection Range: 300 ppm to 10000 ppm
• Sensing Resistance: 1 KΩ to 20 KΩ in 50 ppm toluene
• Response Time: ≤10 s
• Recovery Time: ≤30 s
• Heat Resistance: 31 Ω ± 3 Ω
• Heater Current: ≤ 180 mA
• Heater Voltage: 5.0 V ± 0.2 V
• Heater Consumption: ≤900 mW
• Measuring Voltage: ≤24 V
• Operating Temperature Range: -20° C to +55° C
  • Humidity: ≤95 % RH
  • Ambient Oxygen: 21 %
• Storage Temperature Range: -20° C to +70° C
  • Humidity: ≤70 % RH